#373166#373166

#373166 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.8% C 0.090 H 285.9°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#373166
RGB	rgb(55, 49, 102)
HSL	hsl(247, 35%, 30%)
HSV	hsv(247, 52%, 40%)
CMYK	cmyk(46.1%, 52%, 0%, 60%)
CIE-LAB	lab(23.57, 17.69, -30.43)
CIE-LCH	lch(23.57, 35.20, 300.17°)
OKLab	oklab(34.82% 0.0246 -0.0863)
OKLCH	oklch(34.82% 0.09 285.9)
XYZ	xyz(5.0714, 3.9680, 13.0665)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373166 #606631

analogous

#314666 #373166 #513166

triadic

#373166 #663731 #316637

tetradic

#373166 #663146 #606631 #316651

square

#373166 #663146 #606631 #316651

split-complementary

#373166 #665131 #466631

monochromatic

#0B0A15 #211D3D #373166 #4D458F #695FB2

Accessibility & contrast

On white

11.71

#373166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#373166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373166

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373166	#FFFFFF	#000000	##FFFFFF
##373166	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3A68

Deuteranopia (green-blind)

#1A3765

Tritanopia (blue-blind)

#293C46

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #373166;
/* rgb */ color: rgb(55, 49, 102);
/* oklch */ color: oklch(34.8% 0.090 285.9);

Tailwind

colors: {
  custom: {
    50: '#716992',
    500: '#373166',
    950: '#000000',
  },
}

SCSS

$custom: #373166;
$custom-light: #716992;
$custom-dark: #000000;

JSON

{
  "hex": "#373166",
  "rgb": {
    "r": 55,
    "g": 49,
    "b": 102
  },
  "hsl": {
    "h": 246.792,
    "s": 35.099,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34816,
    "c": 0.08977,
    "h": 285.9
  },
  "luminance": 0.03968
}

Semantic roles & 50–950 ramp

primary

#373166

secondary

#90975C

accent

#CB5DBF

background

#F7F6F9

surface

#EDEBF1

border

#C8C6CB

text

#08060D

muted

#7B7A7E

Preview Lab

Preview with #373166

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →